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Slmp Communications; Applications - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Ethernet.
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1.2

SLMP Communications

SLMP is a protocol used by external devices to access SLMP-compatible devices via the Ethernet.
SLMP communications are available among devices that can receive/send messages with the SLMP control procedure.
The Ethernet-equipped module processes and transfers data following instructions (command) from the external device, so
the programmable controller only needs the open/close processing and does not require a program for data communication.
For SLMP communications, refer to the following.
 SLMP Reference Manual

Applications

This section describes the applications of SLMP communications.
Data read/write
Data read/write can be executed for the following data. With this, the external device can monitor the operation of the
Ethernet-equipped module, analyze data, and control production.
• Device or global label of the CPU module connected with the RJ71EN71 (When the Ethernet function of the RJ71EN71 or
the RnENCPU (network part) is used)
• Device or global label of the CPU module (When the Ethernet function of the CPU module (CPU part for the RnENCPU) is
used)
• Buffer memory of the intelligent function module
File read/write
Files such as parameter files stored in a CPU module can be read/written. Files in a CPU module can be managed on an
external device.
Remote control of a CPU module
A CPU module can be remotely controlled from the external device using remote operations.
Remote password lock/unlock
The remote password can be locked and unlocked from the external device.
Access to the programmable controller on another station via other network
In systems with CC-Link IE Controller Network, CC-Link IE Field Network, MELSECNET/H, MELSECNET/10 or Ethernet, the
programmable controller on another station can be accessed from the external device via the network. However, when
connecting the external device to the CPU module (built-in Ethernet port part), other stations cannot be accessed via network
such as CC-Link IE Controller Network and CC-Link IE Field Network.
Accessing to another station via the port 1 and port 2 of the RJ71EN71 is possible for the module with the
firmware version of "18" or later.
1 FUNCTIONS
1.2 SLMP Communications
1
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